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Role of Two Plant Growth-Promoting Bacteria in Remediating Cadmium-Contaminated Soil Combined with (Lab.)

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Journal Plants (Basel)
Date 2021 Jun 2
PMID 34063227
Citations 11
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Abstract

spp. are energy plants and excellent candidates for phytoremediation approaches of metal(loid)s-contaminated soils, especially when combined with plant growth-promoting bacteria. Forty-one bacterial strains were isolated from the rhizosphere soils and roots tissue of five dominant plants ( Levl., Vaniot Houtt, L., Tenore, and Lab.) colonizing a cadmium (Cd)-contaminated mining area (Huayuan, Hunan, China). We subsequently tested their plant growth-promoting (PGP) traits (e.g., production of indole-3-acetic acid, siderophore, and 1-aminocyclopropane-1-carboxylate deaminase) and Cd tolerance. Among bacteria, two strains, TS8 and MR2, presented higher Cd tolerance and showed the best results regarding in vitro growth-promoting traits. In the subsequent pot experiments using soil spiked with 10 mg Cd·kg, we investigated the effects of TS8 and MR2 strains on soil Cd phytoremediation when combined with (Lab.). After sixty days of planting (Lab.), we found that TS8 increased plant height by 39.9%, dry weight of leaves by 99.1%, and the total Cd in the rhizosphere soil was reduced by 49.2%. Although MR2 had no significant effects on the efficiency of phytoremediation, it significantly enhanced the Cd translocation from the root to the aboveground tissues (translocation factor > 1). The combination of TS8 and (Lab.) may be an effective method to remediate Cd-contaminated soils, while the inoculation of MR2 may be used to enhance the phytoextraction potential of .

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References
1.
Liu Y, Tie B, Li Y, Lei M, Wei X, Liu X . Inoculation of soil with cadmium-resistant bacterium Delftia sp. B9 reduces cadmium accumulation in rice (Oryza sativa L.) grains. Ecotoxicol Environ Saf. 2018; 163:223-229. DOI: 10.1016/j.ecoenv.2018.07.081. View

2.
Mahmood-Ul-Hassan M, Suthar V, Ahmad R, Yousra M . Heavy metal phytoextraction-natural and EDTA-assisted remediation of contaminated calcareous soils by sorghum and oat. Environ Monit Assess. 2017; 189(11):591. DOI: 10.1007/s10661-017-6302-y. View

3.
He X, Xu M, Wei Q, Tang M, Guan L, Lou L . Promotion of growth and phytoextraction of cadmium and lead in Solanum nigrum L. mediated by plant-growth-promoting rhizobacteria. Ecotoxicol Environ Saf. 2020; 205:111333. DOI: 10.1016/j.ecoenv.2020.111333. View

4.
Rajkumar M, Ae N, Prasad M, Freitas H . Potential of siderophore-producing bacteria for improving heavy metal phytoextraction. Trends Biotechnol. 2010; 28(3):142-9. DOI: 10.1016/j.tibtech.2009.12.002. View

5.
Khan S, Cao Q, Zheng Y, Huang Y, Zhu Y . Health risks of heavy metals in contaminated soils and food crops irrigated with wastewater in Beijing, China. Environ Pollut. 2007; 152(3):686-92. DOI: 10.1016/j.envpol.2007.06.056. View